Build failed. https://zuul.opendev.org/t/openstack/buildset/501528494457475faac0512f41e522e4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4dfbbc35af434a4b97f93f05639c626e : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/366bf3bca6084ff699a847bf0f665e0f : FAILURE in 3m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b2e98a6fc09f4762b95ca121cadcf07b : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/35a9315a7ba944109e22073bc8928390 : SUCCESS in 3m 07s